How to choose calender heat transfer diameter and thickness of the drum

The rollers of calender heat transfer in the drum line are mostly cylindrical parts and are usually divided into drive and moving rolls. Suitable for rotary screen printing machines, digital printers and other conveying equipment. So how do you choose the diameter and thickness of the drum line? Let me give you a brief explanation:

 Calender Heat Transfer

After the drum is formed, it is generally surface treated, and some are painted, galvanized, rubberized, chrome-plated. According to the size, it can be divided into large-sized mechanical drums, the length can reach more than 10 meters, the diameter can reach more than 1500MM, and the small flat rollers like the belt conveyor on the automatic assembly line, the length is generally 1 meter. Within, the diameter is between 159MM.

The roller diameter of sublimation heat press transfer machine selection range: 25mm, 2mm, 38mm, 42mm, 50mm, 57mm, 60mm, 76mm, 80mm, 89mm. The principle of determining the diameter of the drum is that when the tensile stress of the conveyor belt is large, the additional bending force should be smaller, whereas when the bending force is large, the tensile stress is smaller, and a smaller roller can be selected.

 Rotary Heat Transfer Machine

The calculation of the thickness for the roller heat press machine's drum usually depends on the diameter of the drum, the length of the cylinder, and the tension of the transport tape and the wear during braking. Therefore, the calculation of the thickness of the drum is difficult, and the calculated value is small, and the wear and the ease of manufacture are also considered, so the thickness of the cylinder is usually selected to be thick. After determining the thickness of the shell, we need to check the strength of the shell, but because the shell is subjected to normal and tangential loads, and the size of the load will vary along the circumference of the drum. Therefore, there is no accurate calculation method for the calculation of the thickness of the roller line drum. Although the finite element calculation can relatively accurately calculate the results, there is still a lack of a common procedure for the calculation of the conveyor roller, and only the finite element of the individual drum can be performed. Analysis, but can not analyze the calculation of the roller line drum.


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